Safety fence for motor roads



Feb. 16, 1954 s. A. RASMUSSEN 2,669,433

SAFETY FENCE FOR MOTOR ROADS Filed July 24, 1952 2 Sheets-Sheet l 2 INVENTOR.

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Feb. 16, 1954 s. A. RASMUSSEN 2,669,433

SAFETY FENCE FOR MOTOR ROADS Filed July 24, 1952 '2 Sheets-Sheet 2 INVENTOR. jmlge'mmem BY (M Patented Feb. 16, 1954 UNITED ii F ICE- SAFETY FENCE FOR MOTOR ROADST Svendmagefiasmusaen; Silkeborg, Denmark:

Applicationlul'y. 24,,1952,,Serial No. 300,601

This invention relates to safetyfences' for mo torroads and, more particularly, new and improved. methods of assembling and mounting such fences at various locations.

Another object ofthe invention is' to provide such assembly means thatLthe safety" fence may be readily assembled and its individual sections easily replaced, in case any part of the fence should become damaged.

It is a further object of the invention to pro-' vide installation members by means of which the fence may be mounted at different locations. e: g. at bridges andsimilar steel structures or reinforced' concrete structures as well as on rocky ground or in tunnels.

The invention will be further described here inafter with reference to' the drawings. which show various embodiments of installation members:

Figure" I is a section of a supporting post. for airiordinary safety fence for mounting at oneside of'a motor road;

Figure 221s a section of a supporting post for a double-sided safety fence to be mounted between tWo traffic lanes.

Figure 3' is a section of'a supporting; frame for mounting along a curbstone.

Figure 4 is a section of a supporting. post mounted on'a rock.

Figure 5 is a section of a supporting post mounted onthe edge of a mountainslope'.

Figure Gshows fixing means for mounting the safety'fence in a tunnel.

Figure 7 is an ordinary safety fenceacc'ord-i ing to Figure 1, viewed from the side.

Figure 8' shows installation members for mounting the fence on a brid'g'eway, structure.

Figure, 9 is a section of a supporting, post'- mounted against'a wall;

Figure 10' shows installation members for mounting the safety fence against, atwall'.

Figure 11' shows a special embodiment of a safety fence mounted on a concrete. structure.

Figure 12 is a section of a supporing. post mounted on aconcrete wall. Figure 13f is a section of a safetyfencemountedion existing postsl Figure 1.4 shows asupportingpost for installationon-alcridgeway structure.

Figures 151 and 16 show a special embodiment,

forialsafetyfence.

Figure 17 shows installation meansfor attachment of, asafety fenceonasteelstructure.

The safety, fence is composed, of, longitudinal 'on supporting posts 2*of reinforced concretethat" may be du into the ground; Theposts 2 areprovided with a recess having a horizontalsupporting surface 3' and an inclined arched sur face 4"c0nf0rm'ing in shape to the back of the The rails are mounted on the plate or rail l. posts as indicated in Figures 1 and 7, leavin a space 5: between the guard rails off the center line of the said posts.

Each supporting post has a through going hole. Slat right angles to the longitudinal directionof the fence, and each end ofth'e guard rails :is provided with an axial hole 1, preferably conical"; so thatits maximum diameter is at'the end surfaceoftheguard' plates; In the holes 'lof two abutting; guardplates there is a pin twhich is engaged by the open. eye of a bolt 9" extending through the hole 6 On to the bolt and projecting'jon the back ofthe post there is screweda' nut. H).

The safety fence is assembled in the-following manner:

A guard. rail plate I is mounted in the recess or depression of two supporting posts with its end Tsurfaces close to the center line'of the posts.

A bolt 9 is then placed in the hole 6 anda pin 3 is passed through the eye of the bolt and intov the" Subsequently, the next guard rail plate I mounted'and moved in axial direction towards to. the post. Between the surface t and the plate I and in theljoint between the end surfaces of the plates mortar is filled in so as to provide tightness.

In the case of replacement. of one or more guardrail plates. owing to damage, the nut H) is unscrewed, and" the. bolt may be struck forwardl'y, the pin passing the opencye of the bolt. When the bolt 9 has been removed, the plates may bedrawninthe direction towards the traf ficlane aslthe space. between the endsurfaces of theplates as well as the clearance in the holes I permitof thisoperation.

The safety; fence illustrated in Figure 2 consists of supporting. posts it provided with two recessesin whichthere are. mounted plates it facing in" opposite directions so that they may serve to, separate two trafiic lanes.

The post, guard) plates-t I. mounted gas showniini Figures? 5a. HIisnprovidediwitha hole 12' extendingfromona recess to the other and being of longitudinal cross-section in horizontal direction. Furthermore, the said post has an axial hole I3 of comparatively large cross section in proportion to the hole I2. Through the hole I2 is passed a bolt I4 having an open eye in either end and which may be mounted in such manner that the position of the eyes is horizontal.

When the bolt I4 has been brought in position, it is turned 90 degrees around its longitudinal axis, and pins 8 are inserted in the holes I in the end surfaces of the plates I. The said pins extend through the eyes of the bolt I4. The plates I are fastened to the post II by introducing a tool into the hole I3, by means of which the bolt I4 is bent so that its two extreme points are pulled towards each other, whereby the tension through the bolts 8 is transmitted to the plates I, thus fastening the said plates. Between the upper surfaces of the two plates mortar I5 is filled in so as to provide tightness.

Referring to Figure 3, I6 denotes a traffic lane and I! a sidewalk, whereas I8 is a curbstone. The safety fence to be mounted along the said curbstone consists like the fences disclosed in the foregoing of guard rail plates I mounted on supporting members. These are in this case constituted by brackets I9 made of sectional iron of T-shaped cross-section, and on to each bracket there is welded a reinforcing iron 26 fixed to the traffic lane by casting. The plates I are fixed to the brackets I9 by means of bolts 2| engaging pins 8 as disclosed in the foregoing.

Figure 4 shows a safety fence mounted on a rock 22 and consisting of guard rail plates I resting in depressions of supporting posts 23. The said posts are placed direct on the rock, being cast in situ and secured to the rock by means of an anchor iron 24. The plates I are fixed to the posts 23 by means of bolts 25 in the disclosed manner.

In Figure 5 is shown a safety fence mounted on a rock 26 by means of posts 21 which are cast in situ and mounted on a mountain slope. The posts are secured to the rock by means of anchor irons 28 and 29. Each post is provided with a member 30 projecting into the road metal and connected with the post by means of an anchor iron BI. The plates I are attached to the posts 21 by means of bolts 32 in the disclosed manner.

In Figure 6, 33 denotes the wall of a tunnel, 34 being the trafiic lane. The guard rail plates I are attached directly to the mountain wall by means of reinforcing irons 35, intermediary members 36 being placed between the plates and the wall.

Figure 8 shows a safety fence installed on a bridgeway structure. The traffic lane is denoted by 31, and a plurality of vertical supporting posts in the bridgeway structure are denoted by 38. The plates I are mounted on supporting members 39 attached to the posts 38 by means of anchor irons 46. The plates I are attached to the posts 38 by means of bolts 4| in the manner disclosed in the foregoing.

The guard rail plates I shown in Figure 9 are mounted on supporting members 42 secured to the traffic lane 43 and a concrete wall 44 by means of anchor irons 45. The plates are attached in usual manner by means of bolts 46.

Figure illustrates another method of attaching the safety fence to a wall 41. The plates Iare mounted on brackets 48 of sectional iron, preferably of T-shaped cross-section, one flange of which is located between the end surfaces of 4 the plates I. The brackets are attached to the wall 41 by means of anchor irons 49, and the plates I are attached to the brackets 48 by means of bolts 50 in the previously described manner.

Figure 11 shows the installation of a safety fence on a bridgeway structure. Along its edge a trafiic lane 5| is provided with a low wall 52 on which is mounted a safety fence 53 carried directly by the wall 52 and attached by means of vertical bolts 54.

Figure 12 shows the mounting of a safety fence on a reinforced concrete structure, for example a bridge. Beside the traffic lane 55 there is provided a concrete girder 56 directly on which there are mounted supporting members 51 attached by means of anchor irons 58. The plates I are attached in usual manner by means of bolts 59.

In Figure 13 is illustrated the attachment of a safety fence to supporting posts 60 mounted along a traffic lane and originally intended for other purposes. In front of the said posts are mounted intermediary members E'H countersunk in the lane 62 and having a depression in which the plates I are mounted as previously described and attached by means of bolts 63 which extend through the intermediary member 61 and the post 60.

Figure 14 shows a supporting member 64 for attachment on a bridgeway structure and having a depression 65 to accommodate the plates I. The supporting member is provided with anchor irons 66 and 61 and a hole 68 for fixing bolts. The upper end of the supporting member has a vertical hole 69 surrounded by reinforcing iron 10. The hole 69 is adapted for installation of a fence.

Figures 15 and 16 show a safety fence composed of elements fl placed beside each other in the ground. These elements, which constitute both the guard rail plates and the supporting members of the fence, are provided with reinforcing irons l2 and are more particularly suitable for mounting in sharp road bends since they are comparatively short or, alternatively, may be cast in a curved shape.

In Figure 17 is shown a traffic lane 13 on a steel structure, for example a bridge, with a plurality of vertical posts I4 with inclined girders 15. The plates I of the safety fence are mounted on brackets 76 that are riveted or welded to the posts 14, and the plates are attached to the brackets 16 by means of bolts IT in the manner previously described. Between the plates I and the inclined girders I5 are mounted intermediary pieces 18.

By curved safety fences which consist of curved plate sections mounted on supporting posts it can be helpful in order to main the curvature of the fence against deformation and damage to provide a wire which runs through holes in some of the posts or all the posts and thereby connect-s the post and increases the resistance of the fence.

What I claim-and desire to secure by Letters Patent is:

l. A safety fence for roads comprising, spaced supporting members each having a through hole opening in the front face of the support medial to the side edges thereof, guard plates of slightly less length than the distance between centers of said supports mounted upon said supports in longitudinal alignment with adjacent edges of adjacent plates lying on opposite sides of said openings and spaced apart by at least the width of said openings, matching and confronting openings in adjacent edges of adjacent plates, dowel pins in the openings in said plates bridging the space between adjacent plates, hooks engageable over said dowels and having shanks extending through the openings in said supports, and means to tension the shanks of said hooks longitudinally away from said dowels.

2. In a safety fence as claimed in claim 1, said openings in the side edges of said plates being outwardly diverging.

3. In a safety fence as claimed in claim 1, said means to tension said shanks comprising nuts threaded on said shanks.

4. In a safety fence as claimed in claim 1 said openings in the side edges of said plates diverging outwardly, and said means to tension said shanks comprising nuts threaded on said shanks.

5. In a safety fence as claimed in claim 1, said supports having horizontal shoulders on their faces, and said plates seating on said shoulders.

6. In a safety fence for roads comprising, spaced supporting members each having a through horizontal hole opening in opposite faces medial to the side edges thereof, guard said openings bridging the space between plates,

a tie member in the hole in said support having hooks at its ends engaging over the dowels, and means to tension the tie member to draw said plates into tight engagement with said supports.

7. In a safety fence as claimed in claim 6, said openings in the side edges of said plates diverging outwardly.

SVEND AAGE RASMUSSEN.

References Cited in the file of this patent UNITED STATES PATENTS Name Date Rasmussen Mar. 7, 1939 Number 

